Posting an up-close #Belfie of herself in a red one-piece bathing suit, she captioned it a simple "84°."
Although most fans were praising Kendall for her glorious butt, some actually accused her of photoshopping.
One commenter wrote, “Since when do you have a butt?” While another simply wrote, “Photoshopped” with a laughing emoji.
It's not the first time Kendall has been accused of Photoshopping pictures of herself and her butt, as many fans notice in paparazzi shots that it is noticeably smaller.
Kendall hasn't commented on any of the negative comments.